////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 18 May 21 14:59:45 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 642991619 GRB_RA: 4.690d {+00h 18m 46s} (J2000), 4.964d {+00h 19m 51s} (current), 4.050d {+00h 16m 12s} (1950) GRB_DEC: -1.600d {-01d 35' 59"} (J2000), -1.481d {-01d 28' 52"} (current), -1.877d {-01d 52' 38"} (1950) GRB_ERROR: 7.86 [deg radius, statistical only] GRB_DATE: 19352 TJD; 138 DOY; 21/05/18 GRB_TIME: 2814.64 SOD {00:46:54.64} UT GRB_PHI: 40.00 [deg] GRB_THETA: 76.00 [deg] E_RANGE: 50.000 - 300.000 [keV] LOC_ALGORITHM: 415 (Gnd S/W Version number) SUN_POSTN: 55.63d {+03h 42m 32s} +19.69d {+19d 41' 16"} SUN_DIST: 54.00 [deg] Sun_angle= 3.4 [hr] (West of Sun) MOON_POSTN: 137.59d {+09h 10m 21s} +21.31d {+21d 18' 25"} MOON_DIST: 129.80 [deg] MOON_ILLUM: 38 [%] GAL_COORDS: 104.51,-63.30 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 3.67, -3.33 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210518033/quicklook/glg_lc_medres34_bn210518033.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210518033/quicklook/glg_locplot_all_bn210518033.png COMMENTS: Fermi-GBM Final Position. COMMENTS: This Notice was ground-generated -- not flight-generated. COMMENTS: The LC_URL file should be available by the time this FINAL notice is produced. COMMENTS: This notice has human-in-the-loop processing.